Paper-folding machine



(No Model.)

J. H. STONEMETZ.

PAPER FOLDING MAGHINE. No. 309,107. Patented Deo. 9, 1884.

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J OI-IN II. STONEMETZ, OF ERIE, PENNSYLVANIA.

PAPER-FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 309,107, dated December 9, 1884.

Application filed October 17,1883.

T0 aZZ whom, it may concern:

Be it known that I, JOHN H. S'ronrmrnrz, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Paper-Folding Machines; and I do hereby declare the following to be a full, clear, and exact description of the in vention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this this specification.

My invention relates to that class of paperfolding machines in which are employed folding or tucking blades operating in connection with compressing or folding rollers;and the object of the invention is to expedite the op eration of folding and reduce the cost of manufacture of the machine.

My invention consists of an improved paper-folding machine, as hereinafter described and claimed, which employs three rollers and two tucking-blades to produce two folds.

In the drawings, Figure l is a side eleva tion of a folding-machine with the three rollers that taketlie place of two pairs of rollers, (shown in dotted lines,) and one of said three rollers being larger than the others. Fig. 2 is an end view of the three rollers exhibited in Fig. 1, showing the various positions of the paper in passing between the same; and Fig. 3 is an end view of three rollers of uniform size, two of the rollers being arranged parallel to each other in the same horizontal plane, and the other roller being arranged beneath one of said upper rollers, but at an obtuse angle thereto or out of line with the axis thereof.

The letter A designates a portion of the frame-work of a paperl'olding machine, and B represents in elevation one of the first pair of rollers. Aknife or tucking blade is mounted on a rock-shaft, O, and serves to deliver the sheet of paper between said first pair of rollers for producing the first fold. Beneath the first pair of rollers, and running at right angles thereto, are arranged three rollers, G G D, which, in connection with their knives or tucking blades G H, serve to fold the paper twice after it has passed between the first pair of rollers and received the first fold.

In Figs. 1 and 2 two rollers, O G, of unequal (No model.)

diameters, are arranged in the same horizontal plane, and placed close together, and the other roller, D, is of a smaller size than the roller 0, under which it is located. It will thus be manifest that when the sheet of paper passes between the rollers O C and receives the second fold, (it having already passed between the first pair of rollers,) it hangs in a pendent position, as is shown in the dotted line Z, and does not come in contact with the third roller, D. As soon, however, as the twice-folded sheet passes a sufficient distance below the rollers C O to bring the fold-line for the third fold opposite the bite of rolls 0' D, the knife or blade I-I, being properly timed, strikes the sheet and delivers it between the rollers G and D, and after its passage between said rollers it has received its third fold and is carried away to the packerbox or other place of deposit by the conveyertapes I.

In Fig. 3 the th reerollers are ofa uniform size; but the axis of the lower roller, D, is arranged out of line or beyond the axis of the roller C, under which it is located. This will bring the peripheries of the rollers D and O at an obtuse angle in relation to each other, and form a space in which the sheet of paper can hang without touching the lower roller, D, until the knife H strikes the sheet to produce the third fold.

I have in the present instance shown only one set of three rollers in a foldingmachine; but it is obvious that several sets may be used, according to the number of folds to be produced.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a paper-folding machine, the combina tion of a pair of folding-rollers arranged 011 the same horizontal plane, and a third roller placed beneath one of said pair of rollers, and having its periphery disposed to one side of the path traversed by a sheet of paper issuing from the upper pair of rolls, together with two tuckingblades arranged in co-operative relation with said triple rollers, substantially as and for the purpose set forth.

I11 testimony whereof I affix my signature in presence of two witnesses.

\Vitnesses: JOHN H. STONEMETV.

A. M. TANNER, O. T. BELT.

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